Chances are high you know the story of Winnie the Pooh - a tale of a bear, a boy and cast of characters etched into the childhood memories of people all over the world.
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What you may not know is how the story came about, the darkness and trauma that helped forge the books and the suffering it caused a young boy, the real Christopher Robin.
That story is explored in Goodbye Christopher Robin, the film currently in cinemas.
Author AA Milne was freshly returned from war, suffering PTSD with flashbacks of the battlefield. But from that hardship came the whimsical poetry of Pooh.
"It made sense that this was so beautiful and such a gorgeous place to spend time because it was created by someone who needed that for his son, for himself, and then it ended up being for the world," says Domhnall Gleeson, who plays Milne.
Winnie the Pooh fast became the most popular bear in world, but he was just a toy. Christopher Robin was AA Milne's real son, propelled into mega-stardom and suffering that can come with it.
"He was thrown into the world spotlight in only the way that only the Royal Family has been really, and it was a bit much for a little person," says Kelly McDonald, who plays the boy's nanny.
Christopher's mother, Daphne, relished the royal attention. She's played by Margot Robbie.
Both actresses say having lies made up in the tabloids about them is the dark side of their fame.
Newshub.